From olindqvist@stanford.edu Thu Aug 03 20:10:35 1995 Path: ashpoly!cascade!bigsur!stanford!olindqvist From: olindqvist@stanford.edu (Olga Lindqvist) Newsgroups: comp.sys.m68k Subject: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Aug03.201035.3425@stanford.edu> Date: Thu, 03 Aug 1995 20:10:35 GMT Organization: Stanford University Computer Systems Lab NNTP-Posting-Host: stanford.edu X-Newsreader: Netscape 1.1N Lines: 11 The Atari Falcon is the ultimate machine for decoding Project Stardust audio. A 256-point complex FFT is computed every 10 milliseconds, displaying a live spectrogram on a standard VGA monitor. The DSP56001 processes the 44.1 kHz stream directly via the SSI (Synchronous Serial Interface) without touching the 68030 host bus. Archive uploaded to ftp.lip6.fr:/pub/atari/Falcon/Music/stardust_falcon.zip. -- Olga Lindqvist "Extraordinary claims require extraordinary spectra." 486DX4/100 (FreeBSD 2.0.5) / NEXTSTEP 3.3 From mbrennan@mit.edu Sat Aug 05 04:52:35 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!mit!mbrennan From: mbrennan@mit.edu (Mikhail Brennan) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Aug05.045235.7633@mit.edu> Date: Sat, 05 Aug 1995 04:52:35 GMT References: <1995Aug03.201035.3425@stanford.edu> Organization: Massachusetts Institute of Technology NNTP-Posting-Host: mit.edu X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Aug03.201035.3425@stanford.edu>, olindqvist@stanford.edu (Olga Lindqvist) writes: > The Atari Falcon is the ultimate machine for decoding Project Stardust audio. The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. -- Mikhail Brennan *PLONK* filter active for trolls. NeXTstation Turbo Color - NetBSD 1.0 From jjohansson@demon.co.uk Sat Aug 05 19:26:35 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!demon!jjohansson From: jjohansson@demon.co.uk (Julien Johansson) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Aug05.192635.5004@demon.co.uk> Date: Sat, 05 Aug 1995 19:26:35 GMT References: <1995Aug03.201035.3425@stanford.edu> <1995Aug05.045235.7633@mit.edu> Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: Netscape 1.1N Lines: 9 In article <1995Aug05.045235.7633@mit.edu>, mbrennan@mit.edu (Mikhail Brennan) writes: > The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. Too bad Atari marketing was so incompetent that nobody bought the Falcon before they pulled out of the computer market. -- === Julien Johansson === Dept of Electrical Engineering, Demon Internet Services UK "Extraordinary claims require extraordinary spectra."